diff --git a/reactos/drivers/storage/ide/uniata/id_ata.cpp b/reactos/drivers/storage/ide/uniata/id_ata.cpp
index 7f8d4d08ba2..27e6e9afc0f 100644
--- a/reactos/drivers/storage/ide/uniata/id_ata.cpp
+++ b/reactos/drivers/storage/ide/uniata/id_ata.cpp
@@ -2971,7 +2971,7 @@ AtapiCallBack__(
         goto ReturnCallback;
     }
 
-#if DBG
+#ifdef DBG
     if (!IS_RDP((srb->Cdb[0]))) {
         KdPrint2((PRINT_PREFIX "AtapiCallBack: Invalid CDB marked as RDP - %#x\n", srb->Cdb[0]));
     }